Heart PointA lot to be found here, including regurgitation, causes of valvular disease, therapy and surgeries available. An excellent diagram of regurgitant mitral valve in motion is shown.http://www.heartpoint.com/valvularheartdx.html

The Merck ManualLooks at stenosis and regurgitation for aortic, mitral and tricuspid valves, their symptoms and signs, diagnosis and treatment. A look at pulmonary valves and idiopathic hypertrophic subaortic stenosis.http://www.merckmanuals.com/professional/cardiovascular_disorders.html

euroSCORE for PatientsProvides an interactive tool that allows a patient to work out their own risk for all forms of cardiac surgery such as valve surgery.http://www.euroscore.org/patienteuroscore2.html